Underground · SLOVENIA CAVE TOURS

15 Slovenia Cave Tours That Repay the Climb Down

25 tours  ·  from $68 a head

The 15 slovenia cave tours that repay the effort of getting to them, with the price, the time you spend below the surface and who each one suits. Number one sits first for a reason.

Ljubljana: Postojna Cave & Predjama Castle Tickets and Tour - Predjama Castle and its cliffside setting
Cave Tours, Ljubljana Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tickets, Tour Reviews, Tours

Ljubljana: Postojna Cave & Predjama Castle Tickets and Tour

1.Postojna Cave & Predjama Castle Tickets and Tour

★★★★★★★★★★4.9 · 2,146 reviews · 6 hours · from $115Our pick

Travel from central Ljubljana to Postojna Cave and Predjama Castle with an English-speaking driver-guide. Ride the cave train, see the human fish, and explore the castle with an audio guide. Guides such as Tibor, David, Luca, and Neza are praised for lively local stories. The $115 price includes transport, both tickets, and skip-the-line service.

“It was a good trip. Our guide was very informative. She spoke about history of Slovenia along with many other trivia. Other than the delayed pickup because of some confusion from their side, the tour was a good one.”

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Postojna Cave and Predjama Castle - Entrance Tickets Included - What the cave walk is really like
Cave Tours, Ljubljana Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tickets, Tour Reviews

Postojna Cave and Predjama Castle – Entrance Tickets Included

2.Postojna Cave and Predjama Castle – Entrance Tickets Included

★★★★★★★★★★5.0 · 938 reviews · 6 hours (approx.) · from $131Top rated

Travel from central Ljubljana to Postojna Cave and Predjama Castle with an English-speaking guide such as Luca, Neža, or Maja. Ride an electric train into Slovenia’s vast underground halls, walk through the cave at 10°C, then use the castle’s audio guide. Tickets, transport, and central pickup are included.

“I found the walking in the cave a bit challenging with wet footpaths and hand rails. I was so concerned about keeping up with the group I barely took time to enjoy the views. The path is quite steep in places.”

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Slovenia in One Day: Lake Bled, Postojna Cave and Predjama Castle - Postojna Cave: Slovenia’s underground showpiece
1-Day Tours, Cave Tours, Ljubljana Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tour Reviews

Slovenia in One Day: Lake Bled, Postojna Cave and Predjama Castle

3.Slovenia in One Day: Lake Bled, Postojna Cave and Predjama Castle

★★★★★★★★★★5.0 · 879 reviews · 10 hours (approx.) · from $151

Travel from Ljubljana in a small group of up to eight with an English-speaking guide such as Nina, Tine, Jan, or Jacob. Ride the train into chilly Postojna Cave, visit cliff-hung Predjama Castle, cross Lake Bled by pletna boat, and tour Bled Castle. Expect a full 10-hour day, several stairs, and extra entrance fees.

“It is a must do trip if one is visiting Ljubljana even for a couple of days. Slovenia Explorer is a wonderful company. Nina the guide cum driver was awesome”

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From Ljubljana: Lake Bled & Postojna Cave with Entry Tickets - Postojna Cave and the ride into the underworld
Cave Tours, Ljubljana Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tickets, Tour Reviews

From Ljubljana: Lake Bled & Postojna Cave with Entry Tickets

4.Lake Bled & Postojna Cave with Entry Tickets

★★★★★★★★★★4.8 · 694 reviews · 11.5 hours · from $173

Spend 11.5 hours with an English-speaking driver-guide visiting Postojna Cave, Predjama Castle, Lake Bled, Bled Castle, and Bled Island. Entry tickets and Bled cream cake are included. The Pletna boat and church entry cost extra. Guides such as Klemen, Tibor, Luka, and David are praised for clear explanations and friendly help.

“Day trip was great. we loved the caves and lake bled. Thomaz was an amazing driver/guide who made sure we were where we were meant to be on time. shared a lot of information about Slovenia along the way which was great.”

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From Trieste: Postojna Cave & Predjama Castle - The electric train into Postojna Cave
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From Trieste: Postojna Cave & Predjama Castle

5.From Trieste: Postojna Cave & Predjama Castle

★★★★★★★★★★4.8 · 444 reviews · 6 hours · from $133

Travel from Trieste into Slovenia with a guide such as Ernest or Dean, then ride an electric train through Postojna Cave and walk among its vast chambers. Continue to Predjama Castle, built into a 123-meter cliff. Transport, entrance fees, insurance, and pickup are included, with English, Italian, and German options.

“Ernest was an amazing tour guide. Knowledgeable and able to answer all of questions.”

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Ljubljana: Lake Bled, Postojna Cave, and Predjama Day Tour - Postojna Cave and its underground train
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Ljubljana: Lake Bled, Postojna Cave, and Predjama Day Tour

6.Lake Bled, Postojna Cave, and Predjama Day Tour

★★★★★★★★★★4.8 · 250 reviews · 10 hours · from $117

Travel from Ljubljana in a small air-conditioned minivan to Postojna Cave, Predjama Castle, and Lake Bled. Your English-speaking guide handles the driving and local context, while you choose which paid sights to enter. Guides may include Nina, Tine, Goran, or other members of the local team. Bring warm clothes for the 9°C cave.

“Fantastic experience, wonderful guide Alinka! Unforgetteble memories! Must see in Slovenia!”

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Ljubljana: Postojna Cave and Predjama Castle Tour - Predjama Castle, a fortress inside a cliff
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Ljubljana: Postojna Cave and Predjama Castle Tour

7.Postojna Cave and Predjama Castle Tour

★★★★★★★★★★4.9 · 247 reviews · 5.5 hours · from $81

Travel from Ljubljana in a small van for up to eight people, with guides such as Nate, David, and Emil sharing Slovenian history along the way. At Postojna Cave, ride an underground train before walking through huge chambers and galleries. Then explore Predjama Castle with an audio guide, or see it from outside for less.

“There was nothing about this tour that I didn't like. The guide (David) was great, the transport was modern, clean and comfortable, and the itinerary was delivered on schedule.”

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From Ljubljana: Postojna Cave, Predjama Castle, & Piran Tour - Postojna Cave and the underground train
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From Ljubljana: Postojna Cave, Predjama Castle, & Piran Tour

8.Postojna Cave, Predjama Castle, & Piran Tour

★★★★★★★★★★5.0 · 244 reviews · 10 hours · from $128

Travel in a small group of up to eight from Ljubljana to Postojna Cave, the cliff-built Predjama Castle, and seaside Piran. English-speaking guides such as Nate, David, Emil, and Tina provide commentary along the way. Expect a cave train, castle visit, free time by the sea, and a long but varied day.

“I loved that we changed the tour itinerary. We started in Piran and had the opportunity to take some amazing pictures due to the morning light. then we visited Predjama Castle and after that the highlight of the tour "Postojna Cave", what an epic finish. David made the magic happen. The drive was smooth, and I received just the right amount of information — not too much and not boring. thank you David and Team :)”

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Ljubljana: UNESCO-Listed Škocjan Caves and Piran Day Trip - The drive from Ljubljana sets the tone
1-Day Tours, Cave Tours, Ljubljana Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tour Reviews

Ljubljana: UNESCO-Listed Škocjan Caves and Piran Day Trip

9.UNESCO-Listed Škocjan Caves and Piran Day Trip

★★★★★★★★★★4.9 · 237 reviews · 9.5 hours · from $111

Travel from Ljubljana by comfortable van to Škocjan Caves, where a local cave guide leads you through a vast underground canyon. Then spend about four hours in Piran with a guided walk, free time, seaside views, food, and shopping. Guides such as Luka, Tibor, and Anna add local history and practical help.

“Excellent trip. The caves are a wonder of nature and Piran a colorful charming town. Recommended.”

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From Ljubljana: Postojna Cave, Predjama Castle and Lake Bled - Postojna Cave and its underground train
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From Ljubljana: Postojna Cave, Predjama Castle and Lake Bled

10.Postojna Cave, Predjama Castle and Lake Bled

★★★★★★★★★★4.7 · 220 reviews · 11.5 hours · from $169

Travel from Ljubljana to Postojna Cave, the cave-built Predjama Castle, and beautiful Lake Bled in an air-conditioned van. Your English-speaking guide handles the driving and local context, while you choose extras such as Bled Castle, the Pletna boat, and the island church. Guides such as Luca, Igor, and Benjamin are known for lively commentary and useful local tips.

“I have to say I really enjoyed our day trip. Our guide Vasco was a very charismatic guy with lots of knowledge about the history of Slovenia and made the tour very fun and interactive. He answered any questions we has without hesitation and thought us a lot about Slovenian history, culture, cuisine and music.”

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From Ljubljana: Postojna Cave & Predjama Castle Guided Trip - Meeting at Trg francoske revolucije
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From Ljubljana: Postojna Cave & Predjama Castle Guided Trip

11.Postojna Cave & Predjama Castle Guided Trip

★★★★★★★★★★4.8 · 185 reviews · 5 hours · from $76

Travel from Ljubljana in a small group of up to seven with guide Ines, entering Postojna Cave by electric train before walking through its grand chambers. Continue to cliff-built Predjama Castle for an audio tour. Transport and guiding are included, but attraction tickets cost extra.

“Really nice, beautiful places, the guide was kind. I recommend it.”

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From Ljubljana: Škocjan UNESCO Caves and Piran Full-Day Trip - Socerb Castle and the Gulf of Trieste
1-Day Tours, Cave Tours, Full-Day, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tour Reviews

From Ljubljana: Škocjan UNESCO Caves and Piran Full-Day Trip

12.Škocjan UNESCO Caves and Piran Full-Day Trip

★★★★★★★★★★4.9 · 138 reviews · 10 hours · from $101

Travel from Ljubljana in a comfortable minivan for an underground river gorge at Škocjan Caves, Gulf of Trieste views from Socerb Castle, and 3.5 hours in Piran. Guides such as Nina, Tomaš, Emil, and Tomas share local history, food tips, and route details. Cave tickets and meals cost extra.

“A really Lovely way to see the Mediterranean side of Slovenia. The Škocjan caves are A MUST. They are different to the Postojna caves so don’t miss out thinking that if you’ve seen one, you’ve seen them all.”

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From Ljubljana: Postojna Cave & Predjama Castle Half-Day - Riding into the cold of Postojna Cave
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From Ljubljana: Postojna Cave & Predjama Castle Half-Day

13.Postojna Cave & Predjama Castle Half-Day

★★★★★★★★★★4.7 · 137 reviews · 5.5 hours · from $124

Travel from Ljubljana in a small group of up to eight, ride an electric train through Postojna Cave, walk among its limestone formations, then tour Predjama Castle, built into a cliff. An English-speaking guide such as Rok, Nejc, or Nina adds local stories and keeps the 5.5-hour outing moving at a comfortable pace.

“Great experience, it was easy to work with the company, guide was on time, lively, and fun. Cave was unique and infrastructure excellent. Castle was very i on the outside and Urban’s lively narrative made the experience all the better. Best of all, no issues whatsoever so you can engage and enjoy the experience.”

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From Zagreb: Ljubljana, Postojna Cave & Predjama with Ticket - Crossing the border in a compact group
Cave Tours, Postojna & Predjama Cave Tours, Slovenia Cave Tours, Tickets, Tour Reviews

From Zagreb: Ljubljana, Postojna Cave & Predjama with Ticket

14.From Zagreb: Ljubljana, Postojna Cave & Predjama with Ticket

★★★★★★★★★★4.9 · 71 reviews · 11 hours · from $200

Spend 11 hours crossing from Zagreb into Slovenia with an English-speaking guide and no more than eight people. Ride the train through Postojna Cave, visit cliff-built Predjama Castle with an audio guide, then tour Ljubljana with free time. Guides such as Dinko, Renato, Maya, and Mina have been praised for thoughtful help and clear local context.

“Lovely trip, Postojna Cave and the Castle were both stunning”

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From Zagreb: Ljubljana, Postojna Cave & Predjama Castle Tour - Leaving Zagreb in a small, practical van
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From Zagreb: Ljubljana, Postojna Cave & Predjama Castle Tour

15.From Zagreb: Ljubljana, Postojna Cave & Predjama Castle Tour

★★★★★★★★★★4.9 · 71 reviews · 12 hours · from $141

Travel from Zagreb to Slovenia in a comfortable van, with Wi-Fi, water, and a snack. Walk through Ljubljana, tour Predjama Castle built into a cave mouth, then ride an electric train into Postojna Cave. English-speaking guides such as Antonio, Dino, and Stephen have led past departures.

“Dino is an excellent tour guide! He even gave me some tips for other cities in Europe which I found really helpful! And of course, during this tour he was amazing. Totally recommend!”

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